Desmarest's hutia

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Desmarest's hutia
Demarest's hutia.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Suborder: Hystricomorpha
Family: Capromyidae
Genus: Capromys
Species: C. pilorides
Binomial name
Capromys pilorides
Say 1822

Desmarest's hutia (Capromys pilorides), also known as the Cuban hutia, is a species of rodent endemic to Cuba.[2] Weighing up to 8.5 kg (19 lb), it is the largest of the extant species of hutia (the extinct giant hutias were far larger).[3] It is common and the only hutia species that is listed as Least Concern by the IUCN.[1]

Description[edit]

Desmarest's hutia has a head-and-body length of 31–60 cm (12–24 in), a tail that is 14–29 cm (5.5–11.4 in) long, and weigh 2.8–8.5 kg (6.2–18.7 lb).[3] It has thick, coarse fur which extends to the tip of the tail. The colour of the body fur varies from black to brown, with a light sand colour and red also seen. The body is stocky and the legs short. It moves with a slow, waddling gait, but can perform a quick hop when pursued. The feet have five toes with large claws which assist the animal in climbing. The stomach is divided into three compartments by constrictions in the gut and is among the most complex of any rodent.[3]

Its karyotype has 2n = 40 and FN = 64.[2]

Habitat and distribution[edit]

Desmarest's hutia is found in a wide range of habitats. In northern Cuba, populations tend to be centred on areas where there are abundant mangroves, while southern populations tend to favour a more terrestrial habitat.

Desmarest's hutia shelters in thick mangroves

Desmarest's hutia is found only in Cuba, but is widespread throughout its range. They are found on the main island, Isla de la Juventud, the Sabana archipelago, the Doce Laqunas archipelago and many of the other islands and cays of the Cuban archipelago. They are abundant in Guantánamo Province, particularly around the Guantanamo Bay Naval Base. In the mountainous areas of eastern Cuba, numbers of Desmarest's hutia are decreasing.

Behaviour and reproduction[edit]

Desmarest's hutias normally live in pairs, but can be found individually or in small groups. They are diurnal and do not burrow, so during the night they rest in hollows in rocks or trees. They are omnivorous but eat mostly bark, leaves and fruit. Occasionally they will take small vertebrates such as lizards. Both males and females scent mark their territory with urine. They breed throughout the year with a gestation period of between 110 and 140 days (normally around 120 to 126 days), although peak breeding season is in June/July. They normally produce between one to three young, weighing an average of 230 g (8 oz). The young are precocial, with fur, fully open eyes and the ability to walk. They are weaned at around five months and reach sexual maturity at around ten months. In captivity they live for eight to eleven years.

Interaction with humans[edit]

Desmarest's hutia in zoo

Hutias were traditionally hunted for food in Cuba as their flesh was agreeable and their size meant they provided a substantial meal. In a few places they were raised in barns and used as a minor stock animal. The Wild Animals Protection Act of 1968 made it illegal to hunt or kill hutias without a permit from the Ministry of Agriculture and Fisheries. In some areas they are so abundant that they cause damage to crops and are viewed as a pest.

Although they are common and there is no immediate concern over the species' survival, a population from East Plan Cay has been relocated to the Exuma Cays Land and Sea Park to ensure their long-term survival. It has also been suggested that they be trialled as a potential microlivestock, as they are easy to raise in captivity.

Taxonomy and subspecies[edit]

First described by Pallas in 1788 as Mys pilorides, it was later noted that Desmarest's hutia did not belong in that genus, and it was placed in the genus Capromys by Tate in 1935. Five subspecies are recorded: ciprianoi, doceleguas, gundlachianus, pilorides, and relictus. Studies have so far shown no genetic differences between the two subspecies ciprianoi and relictus found on Isla de la Juventud, but a 5% sequence deviation by gundlachianus found on Cayo Fragaso.[2] The common name, Desmarest's hutia, is for Anselme Gaëtan Desmarest who described the species in 1822 with the synonym fourniere.

References[edit]

  1. ^ a b Soy, J. & Silva, G. (2008). Capromys pilorides. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 6 January 2009.
  2. ^ a b c Woods, C. A.; Kilpatrick, C. W. (2005). "Infraorder Hystricognathi". In Wilson, D. E.; Reeder, D. M. Mammal Species of the World (3rd ed.). Johns Hopkins University Press. p. 1594. ISBN 978-0-8018-8221-0. OCLC 62265494. 
  3. ^ a b c Nowak, R. M. (1999). Walker's Mammals of the World. Vol. 2. 6th edition. p. 1706. ISBN 0-8018-5789-9
  • Panel on Microlivestock, National Research Council (1991). Microlivestock: Little-Known Small Animals with a Promising Economic Future. National Academies Press. p. 472. ISBN 030904295X. 
  • Brianna Reis. "Capromys pilorides". University of Michigan Museum of Zoology. Retrieved 27 March 2007.